diff --git a/libc/kernel/uapi/linux/in.h b/libc/kernel/uapi/linux/in.h
index 4504132..e90209b 100644
--- a/libc/kernel/uapi/linux/in.h
+++ b/libc/kernel/uapi/linux/in.h
@@ -23,72 +23,107 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 enum {
  IPPROTO_IP = 0,
+#define IPPROTO_IP IPPROTO_IP
  IPPROTO_ICMP = 1,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_ICMP IPPROTO_ICMP
  IPPROTO_IGMP = 2,
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_IGMP IPPROTO_IGMP
  IPPROTO_IPIP = 4,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_IPIP IPPROTO_IPIP
  IPPROTO_TCP = 6,
+#define IPPROTO_TCP IPPROTO_TCP
  IPPROTO_EGP = 8,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_EGP IPPROTO_EGP
  IPPROTO_PUP = 12,
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_PUP IPPROTO_PUP
  IPPROTO_UDP = 17,
- IPPROTO_IDP = 22,
- IPPROTO_DCCP = 33,
- IPPROTO_RSVP = 46,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- IPPROTO_GRE = 47,
+#define IPPROTO_UDP IPPROTO_UDP
+ IPPROTO_IDP = 22,
+#define IPPROTO_IDP IPPROTO_IDP
+ IPPROTO_TP = 29,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_TP IPPROTO_TP
+ IPPROTO_DCCP = 33,
+#define IPPROTO_DCCP IPPROTO_DCCP
  IPPROTO_IPV6 = 41,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_IPV6 IPPROTO_IPV6
+ IPPROTO_RSVP = 46,
+#define IPPROTO_RSVP IPPROTO_RSVP
+ IPPROTO_GRE = 47,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_GRE IPPROTO_GRE
  IPPROTO_ESP = 50,
+#define IPPROTO_ESP IPPROTO_ESP
  IPPROTO_AH = 51,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_AH IPPROTO_AH
+ IPPROTO_MTP = 92,
+#define IPPROTO_MTP IPPROTO_MTP
  IPPROTO_BEETPH = 94,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_BEETPH IPPROTO_BEETPH
+ IPPROTO_ENCAP = 98,
+#define IPPROTO_ENCAP IPPROTO_ENCAP
  IPPROTO_PIM = 103,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_PIM IPPROTO_PIM
  IPPROTO_COMP = 108,
+#define IPPROTO_COMP IPPROTO_COMP
  IPPROTO_SCTP = 132,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_SCTP IPPROTO_SCTP
  IPPROTO_UDPLITE = 136,
+#define IPPROTO_UDPLITE IPPROTO_UDPLITE
  IPPROTO_RAW = 255,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IPPROTO_RAW IPPROTO_RAW
  IPPROTO_MAX
 };
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct in_addr {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __be32 s_addr;
 };
 #define IP_TOS 1
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_TTL 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_HDRINCL 3
 #define IP_OPTIONS 4
 #define IP_ROUTER_ALERT 5
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_RECVOPTS 6
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_RETOPTS 7
 #define IP_PKTINFO 8
 #define IP_PKTOPTIONS 9
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_MTU_DISCOVER 10
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_RECVERR 11
 #define IP_RECVTTL 12
 #define IP_RECVTOS 13
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_MTU 14
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_FREEBIND 15
 #define IP_IPSEC_POLICY 16
 #define IP_XFRM_POLICY 17
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_PASSSEC 18
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_TRANSPARENT 19
 #define IP_RECVRETOPTS IP_RETOPTS
 #define IP_ORIGDSTADDR 20
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_MINTTL 21
 #define IP_NODEFRAG 22
 #define IP_PMTUDISC_DONT 0
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_PMTUDISC_WANT 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_PMTUDISC_DO 2
 #define IP_PMTUDISC_PROBE 3
+#define IP_PMTUDISC_INTERFACE 4
 #define IP_MULTICAST_IF 32
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IP_MULTICAST_TTL 33